Lock



S. SEGAL Dec. 24, 1940.

LOCK

2 Sheets-Sheet l Filed Aug. 7, 1957 INVENTOR ATTORNEY S. SEGAL Dec. 24,1940.

LOCK

Filed Aug. 7, 1957 2 Sheets-Sheet 2 Z8 INVENTOR ATTORNEY Patented Dec.24, 1940 UNITED. STATES PATENT OFFICE 17 Claims.

The present invention deals with locks of the type attached to doors andhaving a bolt adapted to removably interlock with a keeper mounted onthe frame of the door. The chief object of the -invention is to providea simplified, sturdy, efficient, and improved jimmy proof lock embodyinga number of practical improvements and comprising few principal partswhich may be constructed of sheet metal and readily assembled byunskilled operators. Other objects, advantages, and features of theinvention will be apparent as it is better understood by reference tothe following detailed description considered in connection with theaccompanying drawings in which:

Fig. 1 is a perspective view of the lock according to the inventionshown mounted on a swingable door and interlocked with a keeper attachedto the frame of the door.

.Fig. 2 is a horizontal sectional view on the line 2-2 of Fig. 1.

Fig. 3 is a transverse sectional view on the line 33 of Fig. 1.

Fig. 4 is an inside elevational view of the lock shown partly brokenaway.

Fig. 5 is a perspective view of the lock showing the interior thereofand illustrating the pivoted bail or loop in an open position anddisconnected from the conveniently removable shiftable bolt.

Fig. 6 illustrates an exploded but fragmentary view of the selectivelydriven cranks common to and cooperating with one end of a connecting baradapted to be reciprocated longitudinally of the lock casing forshifting the bolt vertically of the casing.

Fig. 7 is a fragmentary perspective view of the bolt and its connectingbar.

Fig. 8 is a sectional view taken on the line 8-8 of Fig. 7, howeverillustrating the manner in which the connecting bar of the bolt ispositioned during assembly thereof.

Fig. 9 is a perspective view of the lock closure plate.

Fig. 10 is a view similar to Fig. 5 however showing the bolt removedfrom the lock casing.

Fig. 11 is an elevational view of a bolt according to the inventioncooperating with a slightly modified but removable connecting bar.

Fig. 12 is a sectional view taken on the line l2l2 of Fig. 11,illustrating the manner in which the connecting bar of the bolt may beattached or removed therefrom and Fig. 13 shows in perspective themanner in which part of the sheet metal plate is bent to form the lockcasing.

The lock It according to the invention includes a. casing II, a bolt l2,actuating means in the form of a connecting bar l3 for operating thebolt, selective driving means 14 controlled by handle [5 accessible onthe inside door face It, '5' and selective driving means I! controlledby a tongue l8 of a rotatable key receiving conventional cylinder lockl9 accessible on the outer face of the door 20. The casing ll, ifdesired may be of a suitable sheet metal, appropriately l0 stamped andformed to take the form illustrated and is characterized by spacedsockets 2|, 22 and 23 and the transverse wall 24 adapted to be fastenedto a side face 25 of door by screws 26.

With the transverse plate 24 anchored to the 15 side face of the door,peripheral rim 2'! of casing II is against the inner face of the door,and the crank arm or driving means I4 is prop erly positioned in respectto stud 28 extending from socket 29 integral with reciprocable con- 20necting bar l3. Crank arm [4 is fixedly fastened to the rotatable shank30 of handle I5. Specifically however shank 30 is journalled in opening3| of boss 32 of casing II. If therefore control handle [5 is rotated,the crank arm 14 is rotated.

Integral with and projecting from crank arm 14 is an annular collar 33which removably receives stud 28 of socket 29. Thus if crank arm I 4 isrotated, connecting bar I3 is reciprocated longitudinally of the casing.

Advantage is taken of the reciprocation of connecting bar 13 toreciprocate the slidable bolt l2 vertically of the casing. To permitsuch operation, bolt I2, in the form of a stamped plate 34 to which isanchored studded block 35, includes upper and lower overhanging lugs 36having vertically alined notches 31 in which the cross bar 38 of thebail or U shaped loop 39 is positioned, the latter having its resilientarms 40 removably snapped on and pivoted to studs 4| at opposed portionsof the peripheral rim 21. As shown in Fig. 4 however, loop 39 is in itsclosed position, to wit, interlocked with the notches 3! of lugs 36. Iftherefore bar I3 is reciprocated longitudinally of the casing, the side42 thereof cooperates with a wall 43 of the rectangular shaped slot 44of lug 45 to slidably shift driving bolt l2 vertically in one directionrelative to the casing and along the track or cross bar 38 of loop 39.In other words uponrotation of crank l4 from its position shown in Fig.4 to its position illustrated in Fig. 5, the bolt I2 is moved from alocked position to an unlocked position, that is, studs 46 of thestudded block 35 anchored to plate 34 of bolt 12 are shifted fromsockets 22 and 23 to sockets 2| and 22 respectively. It should be notedthat the plate 34 of the bolt 12 is provided with lugs or books 41receivable and anchored in notches 5 48 in the studded block 35. Ineffect hooks 41 are fixedly fastened to upper and lower parts of thestudded plate 35 and the latter therefore bodily shift with plate 34when connecting bar I3 is actuated.

l Reciprocable bar I3 is provided with a reduced non-circular stem 50having one end slidably guided in a corresponding non-circular openingof a lug 52 projecting from plate 34. Abutting lug 52 is one end of acoiled spring 53 which also The other end of spring 50 surrounds stem50.

abuts a stop shoulder 55 of an expanded part of bar l3.

When therefore crank arm I4 is rotated from the position shown in Fig. 4towards its position in Fig. 5, bar l3 driven longitudinally of theeasing but towards track 38 of loop 39. Therefore the upper face 42 ofbar 13 cooperates with the upper face 43 of the guide opening 44 andhence the bolt is slidably shifted along the track 38 and spring 53 iscompressed until crank arm l4 starts to pass its dead centre at whichtime spring 53 expands, and acts against stop lugs 55, causing the bar13 to slidably and automatically retract and the crank arm 14 is drivento its upper position shown in Fig. 5, in which case the studs 41 of thebolt are shifted to the upper part of the casing and are in an unlockedrelation with the eyes 56 of the keeper 5'! attached to the frame 58. Itis apparent therefore that the driven bar I3 makes one complete cyclewhen the vbolt is shifted from its locked to its non-locking position.This is also true where the bolt is shifted from a non-locking positionto its locked position in which case lower side 51 of bar l3 actsagainstwall 58, of guide opening 44 in lug (Fig. 4) to slide the boltdownwardly relative to the casing. During such operation, the bolt isslidably guided by bar 38 of loop 39, the spring 53 is firstprogressively compressedand after the dead centre 45 of the crank arm [4is reached, spring 53 expands thus automatically retracting bar l3 whichis limited in its retraction by stop lugs 55 striking lug 45 and hencethe bolt 12 has been thrown to its locking position. A plate 60 servingas a closure, for the lock casing H is attached to the inner face of thedoor and screwsBl carried ,byplate60 hold the key controlled cylinderlock H) in its proper position. Rotatably carried by plate 60 is theslotted collar 62 to which is attached the driving means I! having crankarm 63. Tongue I8 of cylinder lock l9 interlocks with slot 64 of collar62 (Fig. 2). By this arrangement the bolt l2 maybe controlled at theoutside of the door and independently of the handle l5. Therefore with aproperly bitted key inserted in key controlled lock l9, tongue 18 may berotated. Hence driving member I1, is rotated and its crank 63 enterssocket 29 fixedly attached to connecting recip- 65 rocable bar l3. Ifthe key be rotated in one dimotion, the bolt is moved from an unlockedto a locked position and if rotated in an opposite direction the bolt ismoved from a locked to a non-locked position. I Closure plate 60 is alsoprovided with lugs 61 and the offset lug 68 which removably interlockswith the walls of the elongated opening 69 at one end of the lock casingand serves as meansto position the casing longitudinally of the plate 60.75 while lugs 61 are receivable within the lock casing and cooperatewith its peripheral rim 2'! to position the casing l l vertically ofplate 60.

According to the invention illustrated in Figs.

4, 5, 7 and 8, the spring controlled connecting bar l3 may be readilyassembled with plate 34 of 5 the bolt. In this connection spring 53 isthreaded on shank or stem 5|]. Thereafter the latter is inserted on abias into non-circular opening 5| of lug 52 (Fig. 8). Subsequently barI3 is moved inwardly causing stop lugs 55 to compress spring 10 53 andstop lugs 55 enter into opening 69. Further movement of the bar l3 inthe same direction causes notches ll thereof to receive lips 1|] thuspermittingthe insertion of the reduced portion 12 of bar l3 into guideopening 44 of lug 45 15 at which time spring 53 is allowed to expand,thus shifting the body of the bar l3 to slidably interlock withnon-circular guide opening 44 of lug 45. To remove bar l3 from plate 34,the former is moved to compress spring 53 until lips 20 10' registerwith notches H at which time reduced portion! I can be removed fromguide opening 44 and stem 50 from lug 52.

Inthe form according to Figs. 11 and 12, the connecting bar l3 may bereadily attached to 25 plate 34 by first inserting one end of stem 50 inopening 5| of lug 52. Thereafter the bar is manuallymoved to compressthe spring 53 until stop lugs 55 are within opening 69 to permit shank12' to enter non-circular guide opening 44 after 30 which manualpressure is removed permitting spring 53 to expand, thus causing shank12' to be slidably moved in opening 44 until stop, lugs 55 abut lugs 45.If desired, bar 13 may be quickly disconnected from plate 34 by movingthe bar 35 inwardly against spring 53. Thereafter shank 1 2 is tilted tobe free of opening 44 after which stem 50 may be readily withdrawn. fromopening 5| of lug 52. 1

Having assembled the connecting bar to the bolt, the latter may bequickly assembled with the lock casing. In this connection,: 100p.39.isfirst swung to its open position shown in Figs.

5 and 10. In such relation, the interior of the casing except for therotatable crank l4 and the 45 swiveled arms 40 of the loop is free andclear of any encumberances (see Fig. 10) Therefore the bolt may bequickly positioned and inserted withinthecasing. To this end the studdedblock 35 is first slidably inserted in part within the gap 14 (Fig. 5)formed by the interconnecting sockets 2l, 22, and 23 and wall 15 of thecasing. 'Thereafter stud 28 is inserted into the bore of collar 33.Subsequently loop 39 is swung to its closed position, that is, its arms40 enter grooves 31 of lugs 36. The bolt is now properly positioned andslidably locked in the casing. I

With the bolt and easing assembled, the casing may be readily attachedto the closure plate 60 which is fastened to the inner surface of thedoor.

To this end, opening 69 in the peripheral rim 2! of the casing is firstmoved over offset lug 68 t removably interlock therewith.

Thereafter the upper and lower parts of rim 2'! are shifted towards thedoor to removably 65 straddle lugs 31 of the plate 60. It follows thatthe lock casing is now properly positioned in respect to the door. Insuch relation, transverse flange 24 is against edge face 25 of the doorand upon insertion of screws 26, the lock casing is 70 fastened to thedoor.

When the casing is assembled and fastened to the door, the bolt I4 maybe con-trolled by key 65 to rotate crank 63 which as previously setforth is utilized to actuate the connecting bar l3 for shifting the boltvertically of the casing. Since with the present arrangement, theinterior of the lock casing is free of the usual posts and lugs, thebolt may be readily positioned and set therein, the lock may thereforebe readily assembled even without resorting to skilled operators and,since the bolt which may be in part or in'whole of a suitable durablestamping, it need not have an appreciable thickness and consequently thelock casing does not require appreciable depth, and it follows that arelatively thin although durable jimmy proof lock is provided.

As a further advantage, it should be noted that the lock casing l I ifdesired may be made from a single plate which is suitably stamped out ina single operation to provide the front wall 15 as shown and itsperipheral rim 2! which embodies reduced portions or attenuated spacermeans 16 defining alined recesses 11 for receiving upper and lowermargins of the slotted rear wall 18 which is integral with the frontwall 15. After wall 18 is bent over and against the spacer means 16,overhanging flange or-wall 24 which is integral with the body of thecasing extends substantially normal to the rim 2'! and the marginalportions of the back wall 18 are welded to the rim 2! in any well knownmanner. Thus secured the reduced portions 16 provide closure means forthe end sockets 2| and 23.

By the present arrangement, it is apparent that a dominant feature ofthe invention is realized in the provision of a simplified and improvedlock which is characterized by a swingable member adapted to readilyopen or close. If opened, the bolt may be readily positioned in respectto the casing. If closed the swingable member can be convenientlyshifted to interlock with the bolt to slidably guide the lattervertically of the casing and another feature of the invention isconcerned with the provision of control means for actuating areciprooable bar removably mounted on the bolt and adapted to shift thelatter relative to the swingable member upon rotation of the controlmeans.

Various changes may be made in details of construction and arrangementof parts without departing from the spirit of the invention orsacrificing any of the advantages thereof.

I claim:

1. In a lock for a door and frame, the combination of, a casing adaptedto be mounted on said door, a bolt within said casing, a swingablemember connected to said casing and having means to slidably guide saidbolt, actuating means, and means for controlling said actuating meansfor shifting said bolt to removably interlock with a keeper adapted tobe mounted on said frame.

2. In a lock for a door and frame, the combination of, a casing adaptedto be mounted on said door, a bolt within said casing, a loop having apivoted connection with said casing and including means adapted tointerlock with said bolt for slidably guiding the latter relative tosaid casing, actuating means for said bolt, and selective means forcontrolling said actuating means for shifting said bolt to removablyinterlock with a keeper adapted to be mounted on said frame.

3. In a lock for a door and frame, the combination of, a casing adaptedto be mounted on said door, a resilient loop having arms pivoted to saidcasing, and a bolt within said casing and having means adapted tointerlock with said loop to displaceably guide said bolt relative tosaid casing to disconnectably interlock with a keeper adapted to bemounted on said frame.

4. A look associated with a keeper, comprising, in combination, acasing, a loop having arms pivotally and removably secured to spacedportions of said casing and comprising an intermediate portioninterconnecting said arms, a bolt within said casing and having meansadapted to slidably interlock with said intermediate portion to permitsliding said bolt along said intermediate portion for removablyinterlocking said bolt with said keeper.

5. A look associated with a keeper, comprising, in combination, acasing, a loop, means carried by said casing pivotally and removablysustaining said loop, a bolt having a plurality of studs and includingmeans adapted to be slidably guided by said loop, actuating means fordriving said bolt along said loop and vertically of said casing topermit said studs to interlock with said keeper, and control means foroperating said actuating means.

6. In a look, a casing having a plurality of sockets, a bolt disposedwithin said casing and comprising a plurality of studs movably disposedin said sockets, a bail swingably carried by said casing and adapted toremovably interlock with said bolt to shiftably guide the latter, andmeans for actuating said bolt.

7. In a look, a casing, a bolt, a loop pivotally carried by said casingfor slidably guiding said bolt, actuating means for said bolt, and meansfor operating said actuating means.

8. In a look, a casing having a peripheral rim, a bolt within saidcasing, a loop having arms, means pivotally securing said arms toopposed portions of said rim to permit said loop in closing thereof toswing towards or in opening thereof to swing away from said bolt, saidbolt having means adapted to interlock with said loop in a closedposition thereof to permit said bolt to be shifted vertically of saidcasing, actuating means for said bolt, and control means for operatingsaid actuating means.

9. In a look, a hollow casing having a peripheral rim, a swingable looppivotally connected to said rim, a bolt having means slidablyinterlocking with said loop, and means for shitfing said bolt relativeto said loop.

10. In a look, a casing, a crank rotatably sustained thereby, a handlefor actuating said crank, a bail swingably mounted on opposed parts ofsaid casing, and a bolt movably disposed within said casing and havingmeans adapted to be actuated by said crank, said ball and bolt havingcomplementary means for guiding displacement of said bolt relative tosaid bail upon manipulation of said handle.

11. In a look, a casing, rotatable key controlled means, a crankactuated by said key controlled means, a bolt adapted to be actuated bysaid crank, and a swingable bar extending across said casing andinterlocking with said bolt to permit the latter to slide vertically ofsaid casing upon rotation of said key controlled means.

12. In a look, a casing, a bolt Within said casing, a connecting barslidably guided by said bolt, spring means to resist movement of saidbar relative to said bolt, a loop swingably connected to said casing forslidably guiding said bolt, and control means for actuating said baragainst the resistance of said spring means to displace said bolt alongsaid loop.

13. In a look, a casing, a bolt movably disposed within said casing, aswingable member within said casing for guiding displacement of saidbolt, a removable bar slidably mounted on and guided loop swingably anddisengageably connected to said casing for guiding displacement of saidbolt relative to said casing.

15. In a lock, a casing, a bolt therein, a reciprocable bar slidablyguided by said bolt, spring means to resist movement of said bar, amember adapted to be swung away from said bolt to be opened or adaptedto be swung towards said bolt to be closed in respect to said casing,means to swingably support said member, said member having means in theclosed relation thereof for guiding displacement of said bolt relativeto said casing, and control means cooperating with said bar to shift thelatter against the resistance of said spring means to displace said boltalong said member.

16. In a lock, a casing having a plurality of sockets, a bolt disposedwithin said casing and comprising a plurality of studs movably disposedin said sockets, a U-shaped bail swingably carried by said casing andhaving spaced arms adapted to removably interlock with said bolt toshiftably guide the latter, and means for actuating said bolt.

1'7. In a look, a casing having a plurality of sockets, a bolt disposedwithin said casing and comprising a plurality of studs movably disposedin said sockets, disconnectable swingable means carried by said casingto removably interlock with said bolt to shiftably guide the latter,crank operable means for actuating said bolt, and a spring controlledlatch carried by said bolt.

SAMUEL SEGAL.

